Finding the Fourth Proportional to 9,127.72, 13,691.94 and 2,554.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.72 : 13,691.94 = 2,554.48 : x
2. Step 2: Convert to fraction form
   9,127.72/13,691.94 = 2,554.48/x
3. Step 3: Cross multiply
   9,127.72x = 13,691.94 × 2,554.48
4. Step 4: Simplify right side
   9,127.72x = 34,975,786.89
5. Step 5: Solve for x
   x = 34,975,786.89/9,127.72
6. Step 6: Final answer
   x = 3,831.82